{
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        {
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          "product": "glibc",
          "vendor": "The GNU C Library",
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              "status": "affected",
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Rocket Ma"
        }
      ],
      "datePublic": "2026-03-19T17:36:00.000Z",
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              "value": "Calling the scanf family of functions with a %mc (malloc\u0027d character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow."
            }
          ],
          "value": "Calling the scanf family of functions with a %mc (malloc\u0027d character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow."
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      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-20T20:55:41.170Z",
        "orgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
        "shortName": "glibc"
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      "references": [
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          "tags": [
            "issue-tracking"
          ],
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450"
        },
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://inbox.sourceware.org/libc-announce/b11f0003-6ec1-4bd6-b9de-9e38a4efeca3@redhat.com/T/#u"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "scanf %mc off-by-one heap buffer overflow",
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    "assignerShortName": "glibc",
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    "datePublished": "2026-04-20T20:55:41.170Z",
    "dateReserved": "2026-04-02T21:47:21.403Z",
    "dateUpdated": "2026-04-20T20:55:41.170Z",
    "state": "PUBLISHED"
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